you didn't get any responses but I would venture to say that 90% of the people whose eyes glanced over your question (which is not necessarily who you intended to hear from, it sounds like you would have liked to hear confirmation from others who are the same) have exchanged at least 1 facebook message in the past week. Facebook has 1.591 billion monthly active users, whereas the grand total of anyone connected to the Internet in any way is 3 billion users, obviously almost all of them outside of the English-speaking world.

there was indeed a movement to "remove all social media" a couple of years ago, but it ran out of a lot of steam:

https://www.google.com/trends/explore#q=%22delete%20facebook...

There are a lot of privacy settings you can utilize, and you are probably missing out on a lot of opportunities by not being on Facebook: it's costing you.

I was hugely against facebook for a very, very long time. But the fact is, some people simply do not use email, and you can ask for their facebook and communicate with them and build an acquaintanceship, or not do so. The opportunity cost to not using facebook is too much for me: I "can't afford" not to use it in fostering new acquaintanceships with people I meet in passing. Events are another huge thing that is exclusionary and costs me if I am not on facebook.

HN counts as social media.

I use the messenger part of it and I have a page to share stuff about the game I'm making, but I rarely ever use the timeline or other stuff like that.